add helper script to build nvidia support matrix

package.json

@@ -58,6 +58,7 @@
     "@types/node": "^13.7.1",
     "@types/video.js": "^7.3.3",
     "angular-ide": "^0.9.73",
+    "cheerio": "^1.0.0-rc.3",
     "codelyzer": "^5.1.2",
     "imagemin": "^7.0.1",
     "imagemin-giflossy": "^5.1.10",

src/ui/parse-nvidia-sm.js

@@ -0,0 +1,123 @@
+const cheerio = require("cheerio");
+const https = require("https");
+
+const parse2bool = (str) => {
+    return str.toLowerCase() === "yes";
+};
+
+const getColText = ($, row, i) => {
+    var re = new RegExp(String.fromCharCode(160), "g");
+    return $(row.children().get(i)).text().trim().replace(re, " ");
+};
+
+const findDevice = (devices, name) => {
+    return devices.find((dev) => name === dev.name);
+};
+
+const parseNVEncTable = ($, devices) => {
+    devices = devices || [];
+    const table = $("div > a[name='Encoder'] ~ table");
+
+    if (table.first().text().indexOf("BOARD") !== -1) {
+        table.find("tbody tr").each((_i, el) => {
+            const row = $(el);
+            parseNVEncRow($, row, devices);
+        });
+    } else {
+        throw "Coludn't parse encode table.";
+    }
+
+    return devices;
+};
+
+const parseNVDecTable = ($, devices) => {
+    devices = devices || [];
+    const table = $("div > a[name='Decoder'] ~ table");
+
+    if (table.first().text().indexOf("BOARD") !== -1) {
+        table.find("tbody tr").each((_i, el) => {
+            const row = $(el);
+            parseNVDecRow($, row, devices);
+        });
+    } else {
+        throw "Coludn't parse decoder table.";
+    }
+
+    return devices;
+};
+
+const parseNVEncRow = ($, row, devices) => {
+    if (row.children().length === 16 && !row.children().first().hasClass("warning")) {
+        const name = getColText($, row, 0);
+
+        let dev = findDevice(devices, name);
+        if (!dev) {
+            dev = {
+                name: name,
+                family: getColText($, row, 1),
+                chip: getColText($, row, 2)
+            };
+            devices.push(dev);
+        }
+
+        dev["numChips"] = dev["numChips"] || parseInt(getColText($, row, 4), 10);
+        dev["numEncoder"] = parseInt(getColText($, row, 5), 10);
+        dev["maxStreams"] = getColText($, row, 6).indexOf("Unrestricted") === -1 ? -1 : parseInt(getColText($, row, 6), 10);
+        dev["encoders"] = {
+            "h264-420": parse2bool(getColText($, row, 7)),
+            "h264-444": parse2bool(getColText($, row, 8)),
+            "h264": parse2bool(getColText($, row, 9)),
+            "h265-4k-420": parse2bool(getColText($, row, 10)),
+            "h265-4k-444": parse2bool(getColText($, row, 11)),
+            "h265-4k": parse2bool(getColText($, row, 12)),
+            "h265-8k": parse2bool(getColText($, row, 13))
+        };
+    }
+};
+
+const parseNVDecRow = ($, row, devices) => {
+    if (row.children().length === 21 && !row.children().first().hasClass("warning")) {
+        const name = getColText($, row, 0);
+
+        let dev = findDevice(devices, name);
+        if (!dev) {
+            dev = {
+                name: name,
+                family: getColText($, row, 1),
+                chip: getColText($, row, 2)
+            };
+            devices.push(dev);
+        }
+
+
+        dev["numChips"] = dev["numChips"] || parseInt(getColText($, row, 4), 10);
+        dev["numDecoder"] = parseInt(getColText($, row, 5), 10);
+        dev["decoders"] = {
+            "mpeg1": parse2bool(getColText($, row, 7)),
+            "mpeg2": parse2bool(getColText($, row, 8)),
+            "vc1": parse2bool(getColText($, row, 9)),
+            "vp8": parse2bool(getColText($, row, 10)),
+            "vp9": parse2bool(getColText($, row, 11)),
+            "h264": parse2bool(getColText($, row, 14)),
+            "h265": parse2bool(getColText($, row, 15)),
+        };
+    }
+};
+
+let req = https.request("https://developer.nvidia.com/video-encode-decode-gpu-support-matrix", (res) => {
+    let data = "";
+    res.setEncoding("utf-8");
+    res.on("data", function (chunk) {
+        data += chunk;
+    });
+    res.on("end", function () {
+        const $ = cheerio.load(data);
+        let devices = [];
+
+        devices = parseNVEncTable($, devices);
+        devices = parseNVDecTable($, devices);
+
+        console.log(JSON.stringify(devices, null, 4));
+    });
+}).on("error", (e) => console.error(e));
+req.end();